A Peterborough house-turned-bookshop once destined to be torn down for a parking lot, an Acworth store threatened by recent floods and a distinctive architectural feature of an early 20th-century Harrisville estate are the newest local landmarks on the N.H. State Register of Historic Places.

The Kyes-Sage House at the Peterborough Town Library campus, the Acworth Village Store and the Aldworth Stone Gateway in Harrisville are among seven sites statewide recently added to the list, the state’s department of natural and cultural resources announced last week. The honorary listing encourages the preservation of historical and meaningful sites throughout the state.

“We are thankful to continue to celebrate this little gem on Concord Street and thrilled it has been added to the State Register of Historic Places,” Chris Mann, a Peterborough Town Library trustee, said in a news release from the library.

The house at 14 Concord St., built in 1846, has operated as a bookshop since 2000, according to the library. The town purchased the house in 1998, following the death of its previous owner Catherine Sage — an attorney who was the first woman to serve on the Peterborough Select Board — and planned to tear it town to expand a parking lot. But a group of concerned citizens convinced library trustees to instead restore the home, which reopened two years later as a bookshop raising funds for the library, according to the release.

“We are particularly grateful to the Friends of the Library who continue to run the bookshop and create a delightful service and fundraiser for the library,” Mann said.

From 1900 to 1963, Dr. Karl Sumner Kyes, a dentist in Peterborough for more than 60 years, lived in the house with his family, according to the library. The N.H. Division of Historical Resources notes that the Kyes-Sage House “is an excellent example of Carpenter Gothic architecture,” and enduring features of the home include “pendant drops along the roofline and gothic arches with sunburst fans above the windows.”

The Acworth Village Store was built about 20 years after the Kyes-Sage House, and opened for business in 1865, according to its website. Today, the store at 1068 Route 123A is owned by the Acworth Historical Society and operates as a community-run, nonprofit general store offering a variety of local products and food, and hosting events.

“The Acworth Village Store is a relatively unaltered example of a mid-nineteenth century commercial building,” the state’s division of historical resources notes. It was built as a Union Hall, meant to serve as a hub of community and commercial activity. In 1944, the second floor transitioned to residential use.

In recent years, the store has survived severe flooding that struck Acworth, including last summer when Bowers Brook overran its banks near the store. The store hosted a music festival shortly after last summer’s flooding, with a post on its Facebook page at the time noting, “the community could use a break, and so, despite the damage and destruction for us and others, we plan to go ahead with the Music Fest.”

The final local landmark recently added to the register of historic places, the Aldworth Stone Gateway, was built circa 1906-07. It served as the entryway to the home of Arthur and Alice Childs, which itself is listed on the National Register of Historic Places. The house was originally built in 1851 in Worcester, Mass., but when the Childses inherited the home, they moved it piece by piece to Harrisville by rail. Today, the property acts as an inn, dining establishment and events venue known as Aldworth Manor.

The metal gates and archway on the gateway were removed in 1980, but it remains “the grandest stone gateway of three National Register of Historic Places-listed estates in Harrisville,” according to the state’s division of historical resources.

Property owners can nominate their sites for addition to the N.H. Register of Historic Places. Nominations are ultimately approved by the State Historical Resources Council, comprising experts in fields including American history, architecture and archeology, according to the division of historical resources.

Properties on the list can qualify for state funding for preservation work, among other benefits. Property owners of sites on the register can maintain and manage the sites as they wish, though some changes could lead properties to be removed from the list.